11Plus (11+) Exam Harrow Grammar Schools | Math&Reason
- Oct 18, 2025
- 2 min read
Securing a place at Harrow’s leading grammar and independent schools starts with one critical milestone, the 11plus / 11+ exam Harrow. This comprehensive guide reveals key exam dates, structure, and expert-backed preparation strategies to help your child succeed with confidence.
Table of Contents
What is the 11Plus (11+ Exam Harrow?
The 11+ (11plus) exam Harrow is a selective entrance test used by top schools such as Harrow School, John Lyon School, and North London Collegiate. Success opens doors to some of the UK’s most prestigious grammar and independent schools, where competition is fierce and preparation is key.
Important Dates & Registration Details
Registration Opens: Early June (via each school’s admissions portal)
Exam Date: Early September
Results Released: Mid-October (ahead of the 31st October national deadline)
Parents should check the official school websites for exact registration and testing dates as they can vary slightly by institution.
11Plus Exam Format & Structure
Most Harrow schools follow the GL Assessment or CEM format. The 11plus exam Harrow usually includes:
Paper 1 (45 mins): English comprehension, vocabulary, and punctuation
Paper 2 (45 mins): Mathematics, verbal reasoning, and non-verbal reasoning (Math & Reason | Affordable 11+ tutor UK and Mock Tests)
Each paper is equally weighted, and standardised scores determine school offers.
Proven Preparation Strategies
Familiarise Early
Download free official GL Assessment or CEM familiarisation papers to understand question types and timings.
Create a Structured Revision Plan
Follow a 16-week revision schedule, alternating subjects every two days. Move to full-length mock tests eight weeks before the exam.
Mock Tests that Mirror Reality
Math & Reason | Affordable 11+ tutor UK and Mock Tests provides realistic 11plus exam Harrow mock tests with analytics that identify weaknesses and track progress.
Daily Vocabulary & Reasoning Practice
Incorporate short 15-minute drills, synonyms, analogies, and visual reasoning, to sharpen critical thinking.
Stress Management
Mindfulness and time-bound practice sessions help children remain calm and focused on test day.
Common Mistakes & How to Avoid Them
Pacing Issues: Practise timed sections regularly to build speed and accuracy.
Ignoring Spelling & Grammar: English marks often hinge on precision; short spelling tests can make a real difference.
Unbalanced Preparation: Mix revision, mock exams, and rest days to maintain motivation and energy.
Advanced Techniques & Next Steps
Once you’ve mastered the basics, explore:
Memory palace methods for vocabulary retention
Catchment area and sibling priority guidance
School-by-school comparisons for Harrow and nearby boroughs
🔗 Visit the official Math & Reason | Affordable 11+ tutor UK and Mock Tests for authentic practice materials and free familiarisation downloads.
